I had some extra heavy junkboxes sitting around for a few years. Since they're a box, they can't go in the AH, so it's a matter of finding someone online that wants them. If you do find someone who wants them and can take many COD over time, it can be a nice boring few hundred gold an hour, depending on what price you get.

Again, I advertised at my usual 25g. Someone offered 20g, which I took. I traded them over and then cringed as I saw it, "so and so looted empty poison vial."

I'd been in the habit of unlocking all my boxes. I could, and did, get a Teebu's Blazing Longsword out of one, so it was a good habit. As long as I kept auto-loot off I could safely and quickly unlock and check them before mailing them off for turning in.

At first I thought he'd mistakenly opened it. Then another opened. I was off to do my pet battles, so I dropped group. Then he whispered me, saying that it is rude to scam people. I asked, "what scam?" Surely someone wouldn't be so stupid as to use a level 60 box as a way to loot gold for the achievement. Surely someone would know what they're buying. And if they don't, they can see that it is their own fault.

The last time something even remotely like this happened involved someone buying a sword for transmog, only for them to realize they couldn't actually use it. They told me this, in an "oops, I screwed up" kind of way. I offered to buy it back, since it's not as if it was damaged just by being traded. They kept it, maybe for an alt. No accusations of scamming.

I'd have even kept the same policy. If he'd said "these aren't what I thought they are", then I'd have bought back the unopened ones. Of course that's unprofitable, but I can see myself mistakenly buying something that is almost what I wanted and I'd rather play in a game, and live in a world, where people offer an undo button. And maybe a world where people don't immediately assume it's a scam when they make a mistake.